The game is good, having a high enough dificulty to keep you playing for some time. You can get used to the controls after some practice but an option to change them would have been apreciated. Also, I would have wished to be able to change the speed, for me it's easier to see faster but scarcer notes :)
Really good soundtrack and graphics, story also nice. The levels are a bit too easy but overall the game is enjoyable, I couldn't leave it before i got all the hearts :).